Container blank



FIG. 1 is a top plan view of a container blank showing my new design, the bottom plan view being a mirror image of the top plan view shown;

FIG. 2 is a right side elevation thereof, the left side elevation being a mirror image of the right side elevation shown; and

FIG. 3 is a front elevation thereof.

The container blank is to be of conventional thickness, with the closely spaced double lines representing fold lines, and the single dashed lines representing perforations in the container blank. 

The ornamental design for a container blank, as shown and described. 